WASHINGTON (AP) — The National Park Service is updating its predicted peak bloom time for the District of Columbia’s cherry trees, now saying the peak bloom will come in early April.

Officials had said the city’s famous cherry tree blooms would be at their best between March 26 and March 30. On Tuesday the National Park Service updated its website to say the peak bloom dates would be April 3 through 6. Spokeswoman Carol Johnson says cold weather slowed the blossoms’ development.